McCormick County, SC
FEMA National Risk Index scores, disaster declarations & hazard data
McCormick County has experienced 21 federally declared disasters since 1977, most recently Severe Winter Storm in 2026. Its overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
McCormick County's highest-rated hazards are hurricane, ice storm, and earthquake, with its top risk rated "Relatively Low" by FEMA's National Risk Index.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. McCormick County has been designated in 21 declarations since 1977, covering 8 disaster types including hurricane (10), biological (2), tropical storm (2).
| Year | Type | Event name |
|---|---|---|
| 2026 | Winter Storm | Severe Winter Storm |
| 2024 | Hurricane | Hurricane Helene |
| 2024 | Tropical Storm | Hurricane Helene |
| 2024 | Tropical Storm | Hurricane Debby |
| 2023 | Hurricane | Hurricane Idalia |
| 2023 | Hurricane | Hurricane Ian |
| 2022 | Hurricane | Hurricane Ian |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2019 | Hurricane | Hurricane Dorian |
Showing the 10 most recent of 21 total declarations since 1977.
Source: FEMA OpenFEMA Disaster Declarations Summaries. A single disaster can produce more than one record per county. Data current through September 2026.
Risk by hazard type
| Hazard | Risk rating | Risk score | Recorded events | Deaths | Prop. damage |
|---|---|---|---|---|---|
| Wildfire | Very Low | 34.8 | 0 | 0 | — |
| Inland Flooding | Very Low | 16.8 | 3 | 0 | — |
| Coastal Flooding | Not Applicable | — | 0 | 0 | — |
| Earthquake | Very Low | 51.3 | — | — | — |
| Heat Wave | Very Low | 34 | 0 | 0 | — |
| Tornado | Relatively Low | 40.1 | 1 | 0 | — |
| Hurricane | Relatively Low | 62.3 | 0 | 0 | — |
| Hail | Very Low | 31.2 | 10 | 0 | $120 |
| Strong Wind | Relatively Low | 24.6 | 0 | 0 | — |
| Winter Weather | Very Low | 3.2 | 0 | 0 | — |
| Ice Storm | Relatively Low | 59.5 | — | — | — |
| Cold Wave | Relatively Low | 30.8 | — | — | — |
| Lightning | Very Low | 22.4 | 0 | 0 | — |
| Drought | No Rating | 0 | 0 | 0 | — |
| Landslide | Very Low | 32.5 | 0 | 0 | — |
| Avalanche | Not Applicable | — | — | — | — |
| Tsunami | Not Applicable | — | — | — | — |
| Volcanic Activity | Not Applicable | — | — | — | — |
Scores are 0–100 percentiles relative to all US counties — higher means more exposed, not that a disaster is likely this year. Event counts: NOAA Storm Events 2016–2026; earthquake counts from USGS ComCat (M3.0+, 1996–2026). See the methodology page for details.
Community vulnerability
McCormick County ranks in the 61st percentile (Moderate) for community vulnerability — a measure of how hard disaster impacts tend to hit residents. Higher vulnerability means more displacement, worse health outcomes, and slower recovery after a disaster.
| SVI theme | Percentile | Vulnerability level |
|---|---|---|
| Overall | 61st | Moderate |
| Socioeconomic status | 55th | Moderate |
| Household characteristics | 42nd | Low |
| Racial & ethnic minority status | 85th | High |
| Housing type & transportation | 60th | Moderate |
Source: CDC/ATSDR Social Vulnerability Index 2022. Percentiles compare counties nationally — higher means more vulnerable relative to other counties. See CDC SVI for full methodology.
Future risk outlook
| Wildfire metric | National percentile | Level |
|---|---|---|
| Burn probability | 64th | Relatively High |
| Risk to homes | 60th | Relatively High |
| Buildings in direct exposure zone | 91.3% | — |
Wildfire: USDA Forest Service Wildfire Risk to Communities (RDS-2020-0016-2) — modeled values, not annual forecasts. See wildfirerisk.org. Inland flood and heat projections pending data availability; coastal sea-level projections are available for select coastal counties below — see the data page.
Nearby counties
Frequently asked questions
What natural hazards pose the greatest risk in McCormick County?
According to the FEMA National Risk Index, the highest-risk hazards in McCormick County, South Carolina are hurricane, ice storm, and earthquake. The county's overall natural hazard risk is rated Very Low — among the lowest-risk counties in the country.
Has McCormick County received federal disaster declarations?
Yes. McCormick County has received 21 federal disaster declarations since 1977, including declarations in 2026. The most common disaster type on record is hurricane (10 declarations).
Has McCormick County had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for McCormick County include Severe Winter Storm (2026), Hurricane Helene (2024), Hurricane Helene (2024), Hurricane Debby (2024). See the declarations table above for the full history since 1977.
How does McCormick County's natural hazard risk compare to nearby counties?
Among neighboring counties, Columbia County, GA has the highest overall natural hazard risk (Relatively Low) and Lincoln County, GA has the lowest (Very Low). McCormick County is rated Very Low overall.
How is McCormick County's composite disaster risk index calculated?
McCormick County's composite disaster risk index — officially FEMA's National Risk Index (NRI) — scores every US county on a 0–100 percentile scale across 18 natural hazard types, factoring in expected annual loss, social vulnerability, and community resilience. McCormick County's composite score of 10 means its overall natural hazard risk is higher than 10% of US counties.